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LEGAL PROCEEDINGS (Details) (USD $) In Thousands, unless otherwise specified	0 Months Ended	1 Months Ended	3 Months Ended	12 Months Ended
	Sep. 24, 2013 Potential violation of federal environmental laws item	Mar. 30, 2011 Putative shareholder derivative lawsuits item	Mar. 31, 2014 Putative shareholder derivative lawsuits	Dec. 31, 2013 Putative shareholder derivative lawsuits
LEGAL PROCEEDINGS
Number of lawsuits		3
Number of lawsuits alleging violation of Section 14(a) of the Exchange Act in connection with proxy statement		1
Number of federal derivative lawsuits consolidated		2
Settlement amount	$ 1,500		$ 600
Settlement amount payable				495
Number of installments over which fine is payable	3
Fine payable under each installment	$ 500
Period over which fine is payable	3 years

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- Definition

Represents the period, start from the date of sentencing, over which settlement amount will be payable.

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Represents the amount of fine payable under each installment.

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- Definition

Represents the number of federal derivative lawsuits consolidated .

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- Definition

Represents the number of lawsuits alleging violation of Section 14(a) of the Exchange Act.

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- Definition

Amount of judgment or settlement awarded to (against) the entity in respect of litigation.

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Amount of litigation expense, including but not limited to legal, forensic, accounting, and investigative fees.

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- Definition

The total number of new claims filed pertaining to a loss contingency during the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 450

-SubTopic 20

-Section 50

-Paragraph 4

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14435-108349

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